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The AD8310 is a high-speed voltage-output logarithmic amplifier with a detection frequency range of DC to 440MHz. Has a very fast response time (typically 15 ns) and can be used as an ASK
demodulator for more than 10 MHz. It is also the best choice for higher precision IF signal measurement chips.
The detector output voltage is equivalent to the input signal dB output, and its applications include RSSI, transmit power control and pulse detection.
Parameter:
1. Operating frequency: 0.1--440 MHz
2. Detection slope: +24 mV / dB
3. Detection intercept: -108 dBV
4. Dynamic range: -77dBm to +18 dBm (95 dB)
5. Linearity error: ± 0.4 dB
6. Response time: 15nS
7. Output voltage: 0.35 --- 2.5V
8. Working current: 12mA
9. Operating voltage: 7-15V (with LM78L05 regulator chip)
Package included:
1 x AD8310 0.1-440MHz Module
Clint Chron
Reviewed in the United States on May 1, 2022
Analog Devices states that it is critical that the AD 8310 have a 52.3 ohm 1% resistor on the input to the device. This board only has a 100 ohm resistor. So I am going to have to buy some 52.3 ohm resistors and replace the 100 ohm unit.
Radioconnection
Reviewed in the United States on December 26, 2019
I am using this for a log detector to drive a Tektronix 603 X-Y monitor scope. detector easily reaches a full 80 dB with a bit of headroom! I noticed some issues with other log detectors that are using different Analog Devices log amps withextended frequency coverage into the GHz range. Much less usable dynamic range and they had issues with oddnoise bursts near the device's baseline noise floor. This board is completely stable and results are consistent. Excellentfor use with a display or for driving a meter movement for a simple power level meter. Sweep generator is a HP-8333B; only issue is that the 8333B RF output is limited to about 6 dBm. The AD8310 needs another several dB toutilize its full log range.
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